USGS Volcano Hazards Program Volcano Update

AVO update page and observatory web site

The level of unrest at Kanaga Volcano has declined to background levels and AVO is reducing the Aviation Color Code and Volcano Alert Level to Green/Advisory.

A brief period of elevated seismicity and an associated minor ash emission were detected on February 18. A minor increase in seismicity also occurred on February 24, but had no confirmed associated ash emission. Since then the level of unrest has declined to background levels.


Update in Common Alerting Protocol (CAP) format